Earphone



FIG. 1 is a front perspective view showing the new design for an earphone;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the earphone that form no part of the claimed design. 

CLAIM The ornamental design for an earphone, as shown and described. 